+<?php

+/**

+*

+* @package phpBB3

+* @version $Id$

+* @copyright (c) 2005 phpBB Group

+* @license http://opensource.org/licenses/gpl-license.php GNU Public License

+*

+*/

+

+/**

+*/

+define('IN_PHPBB', true);

+define('IN_CRON', true);

+$phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './';

+$phpEx = substr(strrchr(__FILE__, '.'), 1);

+include($phpbb_root_path . 'common.' . $phpEx);

+

+// Do not update users last page entry

+$user->session_begin(false);

+$auth->acl($user->data);

+

+$cron_type = request_var('cron_type', '');

+$use_shutdown_function = (@function_exists('register_shutdown_function')) ? true : false;

+

+// Output transparent gif

+header('Cache-Control: no-cache');

+header('Content-type: image/gif');

+header('Content-length: 43');

+

+echo base64_decode('R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==');

+

+// test without flush ;)

+// flush();

+

+//

+if (!isset($config['cron_lock']))

+{

+ set_config('cron_lock', '0', true);

+}

+

+// make sure cron doesn't run multiple times in parallel

+if ($config['cron_lock'])

+{

+ // if the other process is running more than an hour already we have to assume it

+ // aborted without cleaning the lock

+ $time = explode(' ', $config['cron_lock']);

+ $time = $time[0];

+

+ if ($time + 3600 >= time())

+ {

+ exit;

+ }

+}

+

+define('CRON_ID', time() . ' ' . unique_id());

+

+$sql = 'UPDATE ' . CONFIG_TABLE . "

+ SET config_value = '" . $db->sql_escape(CRON_ID) . "'

+ WHERE config_name = 'cron_lock' AND config_value = '" . $db->sql_escape($config['cron_lock']) . "'";

+$db->sql_query($sql);

+

+// another cron process altered the table between script start and UPDATE query so exit

+if ($db->sql_affectedrows() != 1)

+{

+ exit;

+}

+

+/**

+* Run cron-like action

+* Real cron-based layer will be introduced in 3.2

+*/

+switch ($cron_type)

+{

+ case 'queue':

+

+ if (time() - $config['queue_interval'] <= $config['last_queue_run'] || !file_exists($phpbb_root_path . 'cache/queue.' . $phpEx))

+ {

+ break;

+ }

+

+ // A user reported using the mail() function while using shutdown does not work. We do not want to risk that.

+ if ($use_shutdown_function && !$config['smtp_delivery'])

+ {

+ $use_shutdown_function = false;

+ }

+

+ include_once($phpbb_root_path . 'includes/functions_messenger.' . $phpEx);

+ $queue = new queue();

+

+ if ($use_shutdown_function)

+ {

+ register_shutdown_function(array(&$queue, 'process'));

+ }

+ else

+ {

+ $queue->process();

+ }

+

+ break;

+

+ case 'tidy_cache':

+

+ if (time() - $config['cache_gc'] <= $config['cache_last_gc'] || !method_exists($cache, 'tidy'))

+ {

+ break;

+ }

+

+ if ($use_shutdown_function)

+ {

+ register_shutdown_function(array(&$cache, 'tidy'));

+ }

+ else

+ {

+ $cache->tidy();

+ }

+

+ break;

+

+ case 'tidy_search':

+

+ // Select the search method

+ $search_type = basename($config['search_type']);

+

+ if (time() - $config['search_gc'] <= $config['search_last_gc'] || !file_exists($phpbb_root_path . 'includes/search/' . $search_type . '.' . $phpEx))

+ {

+ break;

+ }

+

+ include_once("{$phpbb_root_path}includes/search/$search_type.$phpEx");

+

+ // We do some additional checks in the module to ensure it can actually be utilised

+ $error = false;

+ $search = new $search_type($error);

+

+ if ($error)

+ {

+ break;

+ }

+

+ if ($use_shutdown_function)

+ {

+ register_shutdown_function(array(&$search, 'tidy'));

+ }

+ else

+ {

+ $search->tidy();

+ }

+

+ break;

+

+ case 'tidy_warnings':

+

+ if (time() - $config['warnings_gc'] <= $config['warnings_last_gc'])

+ {

+ break;

+ }

+

+ include_once($phpbb_root_path . 'includes/functions_admin.' . $phpEx);

+

+ if ($use_shutdown_function)

+ {

+ register_shutdown_function('tidy_warnings');

+ }

+ else

+ {

+ tidy_warnings();

+ }

+

+ break;

+

+ case 'tidy_database':

+

+ if (time() - $config['database_gc'] <= $config['database_last_gc'])

+ {

+ break;

+ }

+

+ include_once($phpbb_root_path . 'includes/functions_admin.' . $phpEx);

+

+ if ($use_shutdown_function)

+ {

+ register_shutdown_function('tidy_database');

+ }

+ else

+ {

+ tidy_database();

+ }

+

+ break;

+

+ case 'tidy_sessions':

+

+ if (time() - $config['session_gc'] <= $config['session_last_gc'])

+ {

+ break;

+ }

+

+ if ($use_shutdown_function)

+ {

+ register_shutdown_function(array(&$user, 'session_gc'));

+ }

+ else

+ {

+ $user->session_gc();

+ }

+

+ break;

+

+ case 'prune_forum':

+

+ $forum_id = request_var('f', 0);

+

+ $sql = 'SELECT forum_id, prune_next, enable_prune, prune_days, prune_viewed, forum_flags, prune_freq

+ FROM ' . FORUMS_TABLE . "

+ WHERE forum_id = $forum_id";

+ $result = $db->sql_query($sql);

+ $row = $db->sql_fetchrow($result);

+ $db->sql_freeresult($result);

+

+ if (!$row)

+ {

+ break;

+ }

+

+ // Do the forum Prune thang

+ if ($row['prune_next'] < time() && $row['enable_prune'])

+ {

+ include_once($phpbb_root_path . 'includes/functions_admin.' . $phpEx);

+

+ if ($row['prune_days'])

+ {

+ if ($use_shutdown_function)

+ {

+ register_shutdown_function('auto_prune', $row['forum_id'], 'posted', $row['forum_flags'], $row['prune_days'], $row['prune_freq']);

+ }

+ else

+ {

+ auto_prune($row['forum_id'], 'posted', $row['forum_flags'], $row['prune_days'], $row['prune_freq']);

+ }

+ }

+

+ if ($row['prune_viewed'])

+ {

+ if ($use_shutdown_function)

+ {

+ register_shutdown_function('auto_prune', $row['forum_id'], 'viewed', $row['forum_flags'], $row['prune_viewed'], $row['prune_freq']);

+ }

+ else

+ {

+ auto_prune($row['forum_id'], 'viewed', $row['forum_flags'], $row['prune_viewed'], $row['prune_freq']);

+ }

+ }

+ }

+

+ break;

+}

+

+// Unloading cache and closing db after having done the dirty work.

+if ($use_shutdown_function)

+{

+ register_shutdown_function('unlock_cron');

+ register_shutdown_function('garbage_collection');

+}

+else

+{

+ unlock_cron();

+ garbage_collection();

+}

+

+exit;

+

+

+/**

+* Unlock cron script

+*/

+function unlock_cron()

+{

+ global $db;

+

+ $sql = 'UPDATE ' . CONFIG_TABLE . "

+ SET config_value = '0'

+ WHERE config_name = 'cron_lock' AND config_value = '" . $db->sql_escape(CRON_ID) . "'";

+ $db->sql_query($sql);

+}

+

+?> \ No newline at end of file